新型逆变器有限集模型预测控制误差补偿策略  

Finite Set Model Predictive Control Strategy With Error Compensation of New Inverter

作　　者：雷晓犇[1] 李雪丰 王传奇 韩建定[1] LEI Xiao-ben;LI Xue-feng;WANG Chuan-qi;HAN Jian-ding(Air Force Engineering University,Xi＇an 710038,China)

机构地区：[1]空军工程大学,航空工程学院,陕西西安710038

出　　处：《电力电子技术》2018年第9期17-20,共4页Power Electronics

基　　金：国家自然科学基金(61074007);陕西省自然科学基金(2012JM8016)

摘　　要：传统三相逆变电路有限集模型预测控制(FCS-MPC)算法中未考虑计算时间和建模误差对电路的影响,导致在开关序列选择后状态变量真实值偏离期望值,失去了最优性。针对该问题,在新型逆变电路混合逻辑动态模型的基础上分析了忽略计算延迟对电路的影响,并在具有延时补偿的预测控制策略的基础上提出了一种新的建模误差的补偿策略和参考变量预测方法。通过前一时刻的状态对当前时刻的建模误差进行预测,同时在当前时刻进行补偿,从而提高了系统的稳定性,降低了总谐波畸变率。最后通过实验验证了所提方法的可行性。The traditional finite control set model predictive control（FCS-MPC） strategy ignores the computing time and the model error which caused that the switch train has not been the best train.To solve the problem,an error com- pensation control strategy is established which has been concerned the ignored computing time and the model error. The new control strategy is applied to the new inverter topology.The modeling error of the current is predicted by the state of the previous time and the current is compensated.This method improves the stability of the system,reducing the total harmonic distortion rate.Finally, the feasibility of the proposed method is verified bv exneriment.

关 键 词：逆变器 模型预测控制 有限集 误差补偿 

分 类 号：TM464[电气工程—电器]